How do Vbeam and Cynosure Cynergy laser compare for treating rosacea?

I am being treated for what dr's have decided is rosacea. I get really hot painful flushing and am trying to find a way to mellow it out. It all started after a dose of prednisone last year. I hadn't had this before that medication. Anyway, I hear lots about Vbeam but my derm is using the cynergy cynosure laser. Are they essentially the same thing? I don't want to spend all this time and money on something that isn't as effective. Thank you!